Tire for vehicles.



B. SIEGEL & M. J. CANTOR. TIRE FOB VEHICLES.

APPLICATION FILED BEPT.29,1910.

998,127,- 1 Patented July 18, 1911.

%%W 7lu d1 M2 2M, gwulawbozs ERNEST SIEGEL AND MICHAEL J. CAN'IOR, ONE ONE-HUNDREDTHS TO JACOB RU]? ONE-HUNDREDTHS TO ERNEST SIEGEL, HUNDREDTHS TO MICHAEL J. CANTOR,

OF NEW YORK, N. Y., ASSIG-NORS OF FIFTY- PERT, JR., TWENTY-FOUR AND ONE-HALF AND TWENTY-FOUR AND ONE-HALF ONE- ALL OF NEW YORK, N. Y.

TIRE FOR VEHICLES.

Specification of Letters Patent.

Patented July 18, 1911.

Application filed September 29, 1910. Serial No. 584,433.

To all whom it may concern:

Be it known that we, ERNEST smear. and MICHAEL J. CANTOR, citizens of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Tires for Vehicles, of which the following is a specification.

Our invention relates to tires for vehicles and the like and particularly to self propelled trucks adapted to carry heavy loads.

In use with vehicles of the kind described both solid and pneumatic tires have disadvantages, the former are too inelastic'and the latter too elastic. If the treading sur face is soft it is apt to wear away rapidly and if it is unyielding it is apt to induce an unpleasant or even destructive amount of vibration in the vehicle.

The object of our invention is to produce a tire designed for use upon heavy trucks which will have a rigid hard treading surface not apt readily to wear out under rea sonable usage and which will also at the same time be reasonably elastic and capable of absorbing usual shocks and vibrations.

In the drawings, Figure 1 is a side elevation in miniature of a wheel embodying one form of our invention, Fig. 2 is a vertical fragmentary section of the same, Fig. 3 is an edge view of a pair of tires mounted side by side upon the same axle and Fig. 4: is a transverse section on the plane of the line 1% in Fig. 2.

In the drawings 10 is the felly of a wheel made of any suitable size and material and adapted to receive spokes or to be otherwise adapted to supportthe framework of a suitable vehicle in any usual manner. Encircling this felly is an inner rim 20 preferably made of sect-ions of cast steel, or other suitable material, and provided with outwardly radially projecting cross pieces or flanges 21, arranged symmetrically and in series around the rim. Each cross piece is preferably provided with reentrant or inwardly sloping sides which form the walls of clovetail recesses adapted to receive cushions or resilient elements shown in the form of the invention illustrated as blocks 40 of soft rubber, having the form of a double wedge with its bases turned in opposite directions.

The sections of which this inner rim is composed may be of any convenient number. In the form illustrated there are shown four quadrants. Means are provided for securely holding the sections together firmly to encircle the felly. lVe prefer as such means adjacent flanges 22 adapted to be connected together by bolts 23 and nuts 24 but do not confine ourselves to the particular connecting means illustrated, as any usual means may be employed. At intervals, the flanges 21 are made circularly Wider than elsewhere and at such places they are provided with pairs of radially projecting fins or lugs 25 having a space 26 between them.

Arranged concentrically around the inner rim 20 is an outer treading rim 30 made preferably of sections of cast steel, or other suit-able material, and provided with inwardly radially projecting cross pieces or flanges 31 arranged symmetrically and in series around the rim, and registering with the outwardly radially projecting cross pieces or flanges 21 of the inner rim 20. Each cross piece 31 is preferably provided with re'e'ntrant or inwardly sloping sides which form the walls of dovetail recesses adapted to receive the cushions or resilient elements 40 above referred to. V

The sect-ions of the outer rim may be of any convenient number. In the form illustrated there are eight shown. Means are provided to make a flexible connection between each adjacent pair. In the form illustrated this consists of a forked lug indicated at 32 projecting from each section and a connecting link 33 fitting within the prongs of two such forks to each of which it is joined by a cross bolt 34. The apertures in the link adapted to receive such bolts 34 are slightly elongated as shown at 35 in Fig. 2 to permit of a slight play at the connecting points, so as to allow the adjoin ing sections of the outer rim to move slightly with respect to each other. IVhen assembled it is intended that the links 33 connecting the sections of the outer rim together should come between the fins or lugs 25 on the inner rim. This is to prevent the lateral displacement of the outer rim with respect to the inner rim. The outer rim is also provided on its inner edge with an inturned annular flange indicated at 35.

ile arranged concentrically it is preterred that there should be a substantial space ll between the outer and inner rims. This is hridgel in part by the cushions {t0 but allows to the (littereut sections of the outer rim some inwardly radial movement before contacting with the inner rim, and it is preferred that the cushions it) should be oi such size and material that no actual contact should take place under ordinary conditions of usage.

The treading surface of the outer rim ma be arranged in any desired form to promote traction. It may be corrugated, roughened or otherwise arranged as may be preferred.

ll liile the wheel comprising the parts as described is an etlicient structure, we prefer to arrange two such wheels upon the same axle or even on an unusually wide telly as shown in Figs. 3 and t, and to arrange them in such a manner, as clearly shown in Fig. 3 that the solid treading surface of the sections of the outer rim on one wheel shall be staggered with respect to the similar sur- "faces of the other wheel of the pair, and that each of such surfaces shall be alongside of a joint in the adjacent wheel.

In assen'ibling the device an intermediate relatively thin rim indicated at may be concentrically arranged between the fell y and the inner rim. The cushions 1 0 are placed in position from the side of the wheel and are readily pressed inwardly from the outside. and when finally in place they abut against the annular flange The sloping sides of the recesses in which they are placed etiectually prevent any accidental displacement.

In use, as the wheel revolves under a load the treading sections of the outer rim come successively in contact with the surface traversed. They are each rigid on the surface, but under the load transmit the strains to the elast'c cushions in turn to the inner rim. Flexible connections between the sections of the outer rim prevent. rupture and promote ease of rotation.

The cushion may be readily renewed when worn, and so may any of the inner or outer rim sections.

it will of course be understood that variations may be made in the form and material ot the parts without departing from the principles of the invention.

ll hat we claim as new is:-

1. A wheel for vehicles comprising annular telly, an annular rim surrounding the telly, and intermediate cushions connecting the telly and rim, the rim comprising sections ot rigid material, links ctmnectingi said sections, and lugs projecting radially trom the telly on opposite sides of the connecting links.

2. A, wheel for vehicles comprising an annular telly having dovetailed recesses in its outer surface, an annular rim surrounding and spaced apart from the telly and having; dovetailed recesses in its inner surtace registering with the recesses of the telly, intermediate cushioning members engapjne in said recesses and connecting; the telly and rim, the rim being composed of sections, torlted lugs extending annnlarly from adjacent sections, links connecting said lugs, and hugs projecting radially from the telly on opposite sides of the connecting links.

In testimony whereo't we have atlixed our signatures in presence of two witnesses.

ERNEST SIEGEL. lt'l'lCHAEli J. CANTOR.

l l itnesses E. W. Sc'iinnu, J12, ALAN C. MoDoNNnLL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

